Isampula Yeseli Yesitsha ekhiqizwe i-Aijiren yenziwe ngengilazi yekhwalithi ephezulu ye-borosilicate hydrochloric acid, engakwazi ukushintsha ukwakheka kwezinga lokushisa eliphezulu, futhi ayisebenzi futhi ayiphenduli ngamakhemikhali ngama-reagents. I-Black PP Screw Cap nayo yenziwe ngezinto ezimelana nokushisa okuphezulu, futhi inokusebenza okuhle kokuvala, okungaqinisekisa ngempumelelo ukuthi i-reagent ngeke ichitheke.